Professional career
2021: First ATP doubles title and top 100 debut
Zieliński made his top 100 doubles debut at No. 99 on 1 November 2021 after winning his first ATP Tour doubles title at the 2021 Moselle Open with his compatriot Hubert Hurkacz.2022: First Major quarterfinal, second ATP title and top 35 debut
In January 2022, he made his debut participating as part of the Polish team at the 2022 ATP Cup, where he played doubles with Szymon Walków and won against Georgia and Argentina. After Hurkacz's win over2023: Major final and Masters doubles title, World No. 7
At the 2023 Australian Open, he achieved his career best Grand Slam result by advancing to the semifinals with partner Hugo Nys. The pair defeated Rafael Matos/ David Vega Hernández, Max Purcell/ Jordan Thompson, second seeds Rajeev Ram/ Joe Salisbury and Benjamin Bonzi/ Arthur Rinderknech in the quarterfinals. The pair beat the French duo of Jérémy Chardy/2024: First Polish mixed doubles champion in Australia and at Wimbledon
At the 2024 Australian Open he reached the quarterfinals with Nys but they lost to the unseeded pair Dominik Koepfer and Yannick Hanfmann and could not defend their runner-up points from the previous year. Despite the loss in the doubles event, seeded third, he reached the final in the mixed doubles partnering Hsieh Su-wei, and they won their first Major mixed doubles title, defeating second seeds Desirae Krawczyk and Neal Skupski. They saved a championship point en route to Zieliński's first Grand Slam title and Hsieh's seventh, and first on hardcourts. Zieliński became the first Polish finalist and champion at a mixed doubles event. At the 2024 Abierto Mexicano Telcel in Acapulco he won his first ATP 500 title with Nys defeating top pair of Santiago Gonzalez and Neal Skupski. He reached the mixed doubles semifinals at the 2024 French Open with Hsieh Su-wei where they lost to Krawczyk and Skupski. At the next Grand Slam, the 2024 Wimbledon Championships, he reached another final in mixed doubles with the same partner, Hsieh Su-wei. They won the title defeating Mexican duo Giuliana Olmos and Santiago González in the final.2025: United Cup Final
Zieliński entered the United Cup representing Team Poland. With his team, he advanced to the final where Team Poland were defeated by Team United States.College career
Zieliński attended and played collegiate tennis at theDoubles performance timeline
Men's doubles
Mixed doubles
Significant finals
Grand Slam tournaments
Men's Doubles: 1 (1 runner-up)
Mixed Doubles: 2 (2 titles)
ATP Tour finals
Doubles: 13 (5 titles, 8 runner-ups)
ATP Challenger and ITF Futures/World Tennis Tour finals
Singles: 1 (1 runner-up)
Doubles: 31 (19 titles, 12 runner-ups)
References
External links
* * * {{DEFAULTSORT:Zielinski, Jan 1996 births Living people Polish male tennis players Tennis players from Warsaw Tennis players at the 2014 Summer Youth Olympics Youth Olympic gold medalists for Poland Georgia Bulldogs men's tennis players Polish expatriate tennis players in the United States 21st-century Polish sportsmen Grand Slam (tennis) champions in mixed doubles Australian Open (tennis) champions